MOTO TASSINARI V-FORCE Reed Valve System for YZ 125 2005-19

VHM Cylinder Head for Yamaha YZ125 05-21 / Fantic XX125 / XE125 2021

• More engine power

• Better heat transference

• More resistance to detonation

• Exchangeable combustion chambers available

Inserts must be ordered seperately

STANDARD VFORCE REED VALVE FEATURES 

• Double the reed tip surface over a conventional reed valve design

• Increased bottom end, stronger mid-range and longer top-end

• Greater efficiency due to reduced reed petal travel

• Reduced reed petal wear

• Screw free design eliminates risk of screws going through motor enables rapid reed petal changes

VHM Piston (Ø53.95) for YZ125 05-24 / Fantic XX125 2021

• High performance
• Inside coating and special Z-clips
• Longevity
• Keeps high performance during lifetime

This piston needs a clearance of 0.05mm! Must be used in combination with a +3mm longer conrod and 20mm small end bearing.

VHM Head Insert (11.20cc) for Yamaha YZ125 05-21 / Fantic XX125 2021

Size: Standard 11.20cc, 0.00, 0.90

• Best overall performance

• Quick to adjust

• Good resistance to detonation

This insert does not fit into an OEM head, only a VHM cylinder head